POE 2 Acolyte skill Hand of Chayula + Whisper of Doom -> doesn't applies more than 1 curse

Hand of Chayula:
Dash to an enemy and Strike them with an unarmed Attack, applying socketed Curses and Marks with reduced effect. This skill always Strikes with your bare fist, even if you have a Quarterstaff equipped.

I took a "keystone node" from "Whisper of Doom"(wich provide you apply an extra Curse) to apply an extra socketed Curse but instead that, just works the effect of one of them, "chaos curse".

My point, the skill just applies 1 curse even with the Keystone "Whisper of Doom".

I'm wonder if as monk you can apply just 1 curse even with de description of the skill "Hand of Chayula" or the skill is buged or the "Keystone" is buged or its description is wrong. Also I'll try to get an item to apply an extra curse to prove if is the skill or just the cap of "early acces" to 1 curse.

this combo still not work?